// pages/goods_list/goods_list.js

import { request } from "../../request/index";
Page({
  /**
   * 页面的初始数据
   */
  data: {
    tabs: [
      {
        id: 0,
        value: "综合",
        isActive: true,
      },
      {
        id: 1,
        value: "销量",
        isActive: false,
      },
      {
        id: 2,
        value: "价格",
        isActive: false,
      },
    ],
    goodsList: [],
  },
  QueryParams: {
    query: "",
    cid: "",
    pagenum: 1,
    pagesize: 10,
  },
  totalPages: 1,

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function (options) {
    this.QueryParams.cid = options.cid || "";
    this.QueryParams.query = options.query || "";
    this.getGoodsList();
  },
  async getGoodsList() {
    const res = await request({
      url: "/goods/search",
      data: this.QueryParams,
    });
    const total = res.total;
    this.totalPages = Math.ceil(total / this.QueryParams);

    this.setData({
      goodsList: [...this.data.goodsList, ...res.goods],
    });
    wx.stopPullDownRefresh();
  },
  handleTabsItemChange(e) {
    const { index } = e.detail;
    let { tabs } = this.data;
    tabs.forEach((v, i) => {
      i === index ? (v.isActive = true) : (v.isActive = false);
    });
    this.setData({
      tabs,
    });
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {},

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function () {},

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function () {},

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function () {},

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function () {
    this.setData({
      goodsList: [],
    });
    this.QueryParams.pagenum = 1;
    this.getGoodsList();
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function () {
    if (this.QueryParams.pagenum >= this.totalPages) {
      wx.showToast({
        title: "没有数据",
      });
    } else {
      this.QueryParams.pagenum++;
      this.getGoodsList();
    }
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function () {},
});
